Tags for the characters from Romance of the Three Kingdoms and characters based on them are messy right now.
The historical figures simply use their real names (as opposed to their courtesy names). Meanwhile Ikkitousen characters are named after the combination of both their real names and courtesy names, in Japanese (so for example, Zhuge Liang "Kongming" becomes Shokatsuryou Koumei). Finally, Koihime Musou characters are tagged as the Japanese version of the real names, most of them without a qualifier (Zhuge Liang in this case is just Shokatsuryou).
Naturally all of these should be qualified, but in the case of Koihime Musou there's another layer of complexity because most characters also have yet another set of names which they are commonly called as (supposedly their "true" names). Shoukatsuryou is "Shuri", Sousou is "Karin", etc.
Having said this, which would be the ideal option for KM characters? For them to have their full names (the Fandom wiki uses the same names as Ikkitousen) or their names by which the fanbase commonly knows them as? In the former case, the true names could be aliased to their full names.
It would also be necessary to remove certain aliases (Koumei is aliased to Shokatsuryou, Kan'u is aliased to Kan'u (Koihime Musou)).